Railway-crossing gate



E. A. MARTEL AND L. J. MERCIER. RAILWAY CROSSING GATE.

APPLICATION FILED MAR. 20. I920. 1,355,492.

Patented Oct. 12,, 1920.

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RAILWAY CROSSING GATE.

APPLICATION flLl il) MAR. 20. I920- 1,355,492.

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6 SHEETS-SHEET 3.

E. A. MARTEL AND L. J. MERCIER.

RAILWAY CROSSING GATE.

- I APPLICATION FILED MAR. 20. I920. 1,355,492.

Patented Oct. 12, 1920.

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1,355,492, Patented Oct. 12, 1920.

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RAILWAY CROSSING GATE. APPLICATION FILED MAR. 20, 1920.

Patented Oct. 12, 1920.

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nusnnn ALEXIS MARTEL AND m'zomzoAs JOSEPH MERCIER, or s'r. ISIDORE'naucx- LAND, QUEBEC, CANADA.

RAILWAY-CROSSING- GATE.

Specification of Letters Patent,

Patented. Oct. 12, 1920.

Application filed March 20, 1920. Serial No. 367,317.

following is a full, clear, and exact description of the invention, suchas will enable others skilled in the art to which it appertains to makeand use the same.

The present invention relates to a railway crossing gate for gradecrossings between railways and highways, and, further, a gate of thetype that is adapted to be automatically operated bythe approachingtrain to close the gate and to open the same after leaving the crossing,the said automatic op-, eration being accomplished by means of coactingconnections.

The principal object of the invention is to produce a crossing gatewhich shall be infallibly operated by the train so as to be opened orclosed which shall dispense with electrical, pneumatic, and otherindirect means for closing and opening the gates, whichlatter to fail atcritical times and to cause the power of the locomotive to act directlyupon the'gate without the interposition of any other power to open andclose the same.

The invention further consists in the special arrangement of shafts andpulleys by which the gates are connected together, so as to be raisedand lowered simultaneously in opposite directions.

The invention provides for an auxiliary gate, which is adapted to belowered to give warning of the approach of the train prior to thelowering of the safety gates.

The invention consists, furthermore, in the constructions andcombinations of parts hereinafter described, and more particularlypointed out in the claims.

In the drawings accompanying this specification, we have illustrated ourinvention as applied to a single track railroad, but it is understoodthat the-same principle may be applied to a double track system,together with the specific and most approved designs of the details bywhich the parts coact with one another, andherein:

Figure 1 is a perspective view of .a roadway crossing on a single trackvroad, provided with gates according to our invention;

Fig. 2 is a plan view of the same, with the locomotive schematicallyshown;

Fig. 3 is a side elevational view of that portion of the device againstwhich the pilot of the locomotive engages; I

Figs. 4, 5 and 6 are detail elevational views of the operating levers,illustrating the various positions assumed by the same when engaged bythe locomotive pilot to actuate the auxiliary signal gate;

Fig. 7 is a detail View of the signal gate and part of the mechanismtherefor;

Fig. 8 is a detail view of thelever for actuating the signal gate; 0

Fig. 9 is a section on line 9-9 of Fig. 8;

Fig. 10 is a detail section with a portion of the plate broken away;

Fig. 11 is a section on line 11 -11 of igs. 12 and 13 are plan views ofthe levers;

Fig. 14 is a detail View of the gate operating lever;

reference, 1 and 2 indicate the gates proper which are preferably formedof bars Wl11Cl1 converge at their outer ends. The inner ends of thegates are pivotally secured to the standard housings 3 and 4 by means ofthe shafts 5 and 6 mounted in the upper enflls of the sidebars 7 and 8of said standar s.

A shaft 9 connects standards 3 and 4 and extends beneath the track 10.Secured to shaft 9 are the pulleys 11 and 12 which operate in the baseof the housings 3 and 4. and likewise pulleys 13 and 14 are mounted onthe upper shafts 5 and 6. I

A standard housing 17 is arranged to one side of the highway crossing 16and opposite at one end to a trip lever 24 mounted in the.

journal casing 25 at a relatively great distance from a crossing. Thiscable 23 is trained over the tackles 26 having link connection 27 to theposts 28 and over'the pulley 21 of standard casing 17 the cable 23 isthen passed back over the upper surface of the tackles 26 and theopposite end is secured to the trip lever 29, pivotally mounted 'inthejournal casing 30. Springs 37 and 37' are secured at one end tohousing casings 25 and 30 and at the lower ends of trip levers' 24 and29. These levers 24 and 29 are formed with cut away portions 51 and 52on one side which engage with lugs 53 and 54 on shaft 55 and 56. a V aTherefore, a locomotive after passing the gates strikes these levers 24and 29 the same will be'forced in a direction opposite to and away fromthe gates without revolving or changing position of shafts 55 and'56 orlugs 53 and 54; I

Levers 24 and 29 are then returnedto a vertical position by thetensionof springs 37 and 37.

By this means it will be seen that the signal gate 19 will not beneedlessly operated after train haspassed the crossing.

j The trip levers 24 and 29 are spaced apart at such distance, so thatupon the locomotive pilot engaging the trip lever 24, the signal arm 19will be actuated, to dispose the same in the position indicatedin Fig.7, that is, across the roadway 16. When the locomotive has passed lever24, it will then engage lever 29 and such engagement will actuate cable23 and elevate the signal 19 to itsnormal vertical position. r

The mechanism for actuating gates 1 and 2 will now be described. A triplever 31 is mounted in the j ournal casing 3 1 and a cable 32 is trainedat one-end over the pulley 11. in

the base of the housing 3. Thiscable 32' is likewise trained over thetackles 33, at-

tached to the posts 34 and at its opposite end, is wound around thepulley 35 on shaft 36, on which the trip lever 31 is mounted. A spring37 is secured at one end to the housing plate 38 at the lower end of thetri i lever 31.

hen the pilot of the locomotive engages lever 31, the'latter is rockedon its pivotal connection'36 and resultantly' cable 32 is actuated,which revolvespulley 11. In this manner, cable 39, trained over pulleys13 and 11, is moved, and shaft.9, is likewise actuated to move pulley12. A cable 40 is mounted on shaft 42 and a cable 45 is trained at oneend over pulley 44 and at the opposite end over pulley 12 on shaft 9 inthe standard casing 4. j v When the pilot of thelocomotive strikes thelever 41 the pulley 44 is revolved, which actuates the cable 45 and inturn pulley 12. In this manner, the cables'39 and 40 in the casings 3and 4 are actuated to cause the lowering of the gates 1 and 2. v

Levers 31 and 41 are formed with enlarged weighted base portions 46 andare formed with cut away portions 47 and 48 at each side which engagethe lugs 49 and 50 on shaft 42. 1 By the provision of the cut awayportions 47 and 48 withrespect to thelugs 4.9 and 50, the impact of thepilot'with the lever 417 .is modified and the lever owing to itsweighted end will resume normal vertical position. Likewise lever 31 isof the same construction and it coiiperates with lever 41 in returningthe gates 1 and 2 to vertical position.

In this manner, we have provided a crossing gate that is directlyactuated by the locomotive and which first signals at the crossing uponthe approach of the train and by contact of the lomotive pilot with thelever 41.

It is understood that the means of operating the signal arm issymmetrical on either side of roadway crossing but owing to the extremedifficulty of illustrating a' device of this nature and so that thedrawingswill'be easily readable we have shown Having thus described ourinvention, 1 what we claim is:

lower end, said counterweight being cut away at opposite sides to formoppositely disposed shoulders, pins projecting from the shaft atopposite angles and disposed in the paths of said shoulders for contacttherewith upon movement between said shaft and lever, cable connectionsbetween the gate and pulley,.and means operated by an 7 engine. or thelike. for tripping said. lever and actuating the gate.

: nly one side ofthe operation in our views" as 1g. 1;

2. In an apparatus of the class described, the combination with therailway rails of a track and a gate pivotally supported adjacent to saidtrack, a bracket mounted adjacent the rails convenient to the gate, ashaft journaled in said bracket transversely of the rails, a pulleykeyed to said shaft, a lever fulcrumed on said shaft, said lever havingits lower end increased in diameter and thickness, and equal extendingopposite sides of the lever constituting a counterweight, saidcounterweight upon opposite sides of the lever being cut out intriangular formation and providing oppositely disposed shouldersarranged upon opposite sides of the lever, pins projecting from theshaft in opposite directions and extending in said out out portions ofthe counterweight for engagement with the shoulders thereof, cableconnections between the gate and pulley, and an engine operating meansfor tripping said lever and actuating the gate.

In witness whereof we have hereunto set,

our hands.

EUSEBE ALEXIS MARTEL. LEONIDAS OSEPH MEROIER.

